Two new 14, 15-secopregnane-type steroidal glycosides from the roots of <i>Cynanchum limprichtii</i>
作者:Jia-chuan Liu、Li-li Yu、Shao-fei Chen、Xiao-jie Lu、Dan Zhao、Hai-feng Wang、Gang Chen、Yue-hu Pei
DOI:10.1080/14786419.2017.1353506
日期:2018.2.1
Two new steroidal glycosides 1 and 2, along with three known ones (3–5), were isolated from the 95% ethanol extract of the roots of Cynanchum limprichtii Schltr. The structure of the new compounds was elucidated as 3-O-α-L-diginopyranosyl-(1→4)-β-D-digitoxopyranosyl-(1→4)-β-D-cymaropyranosyl-(1→4)-β-D-thevetopyranosyl-14, 16:15, 20:18, 20-triepoxy-14, 15-secopregn-4, 6, 8 (14)-triene (1) and 3-O-α
两个新的甾体糖苷1和2,有三个已知的那些(沿3 - 5),从根的95%乙醇提取物中分离牛心limprichtii Schltr。新化合物的结构鉴定为3-O- α -L-diginopyranosyl-(1→4) - β -D- digitoxopyranosyl-(1→4) - β -D- cymaropyranosyl-(1→4) - β -D-thevetopyranosyl-14、16:15、20:18、20-三环氧-14、15-secopregn-4、6、8(14)-三烯(1)和3-O- α -L-环吡喃糖基-( 1→4) - β -D- digitoxopyranosyl-(1→4) - β-D-3-demethyl-2-deoxythevetopyranosyl-14,16:15,20:8,20-triepoxy-14,15-secopregn-5,8(14)-diene(2)